The piggies have outgrown their pen again: Firefox 69 will no longer

build in 5 GB of memory. Bump default datasize for pbuild to 6 GB.
ok landry@ ajacoutot@

src/etc/etc.amd64/login.conf

@@ -1,4 +1,4 @@
-# $OpenBSD: login.conf,v 1.11 2019/06/02 06:46:17 jmc Exp $
+# $OpenBSD: login.conf,v 1.12 2019/08/19 20:59:14 naddy Exp $
 
 #
 # Sample login.conf file.  See login.conf(5) for details.
@@ -92,7 +92,7 @@ authpf:\
 #
 pbuild:\
 	:datasize-max=infinity:\
-	:datasize-cur=5120M:\
+	:datasize-cur=6144M:\
 	:maxproc-max=1024:\
 	:maxproc-cur=384:\
 	:tc=default: